Question:
An iron rod of susceptibility 599 is subjected to a magnetising field of 1200 A $m^{-1}$. The permeability of the material of the rod is :
$(\mu_o = 4\pi \times 10^{-7} T\,m\,A^{-1})$
An iron rod of susceptibility 599 is subjected to a magnetising field of 1200 A $m^{-1}$. The permeability of the material of the rod is :
$(\mu_o = 4\pi \times 10^{-7} T\,m\,A^{-1})$
Updated On: Apr 14, 2025
- $2.4 \pi \times 10^{-4} T\,m\,A^{-1}$
- $8.0 \pi \times 10^{-5} T\,m\,A^{-1}$
- $2.4 \pi \times 10^{-5} T\,m\,A^{-1}$
- $2.4 \pi \times 10^{-7} T\,m\,A^{-1}$
Hide Solution
Verified By Collegedunia
The Correct Option is A
Solution and Explanation
Given, $\chi_{m}=599$
Also, $\mu_{r}=1+\chi_{m}=600$
We know, $\mu=\mu_{r}\mu_{o}$
$\mu=600\times4\pi\times10^{-7}$
$\mu=2400\pi\times10^{-7}$
$\mu=2.4\pi\times10^{-4}\,T\,m\,A^{-1}$
Also, $\mu_{r}=1+\chi_{m}=600$
We know, $\mu=\mu_{r}\mu_{o}$
$\mu=600\times4\pi\times10^{-7}$
$\mu=2400\pi\times10^{-7}$
$\mu=2.4\pi\times10^{-4}\,T\,m\,A^{-1}$
Was this answer helpful?
1
0
Top Questions on Magnetism and matter
- Identify the correct statement:
- KCET - 2025
- Physics
- Magnetism and matter
- Two long parallel wires X and Y, separated by a distance of 6 cm, carry currents of 5 A and 4 A, respectively, in opposite directions as shown in the figure. Magnitude of the resultant magnetic field at point P at a distance of 4 cm from wire Y is \( 3 \times 10^{-5} \) T. The value of \( x \), which represents the distance of point P from wire X, is \_\_\_\_\_ cm. (Take permeability of free space as \( \mu_0 = 4\pi \times 10^{-7} \) SI units.) \includegraphics[width=1\linewidth]{126.png}
- JEE Main - 2025
- Physics
- Magnetism and matter
- A diamagnetic substance is brought, one by one, near the north pole and the south pole of a bar magnet. It is:
- CBSE CLASS XII - 2025
- Physics
- Magnetism and matter
- A current-carrying loop can be considered as a magnetic dipole placed along its axis. Explain.
- CBSE CLASS XII - 2025
- Physics
- Magnetism and matter
- Obtain the relation for magnetic dipole moment \( \mathbf{M} \) of a current-carrying coil. Give the direction of \( \mathbf{M} \).
- CBSE CLASS XII - 2025
- Physics
- Magnetism and matter
View More Questions
Questions Asked in NEET exam
- Interference pattern can be observed due to superposition of the following waves:
A. \(y = a \sin \omega t\) B. \(y = a \sin 2\omega t\)
C. \(y = a \sin(\omega t - \phi)\) D. \(y = a \sin 3\omega t\)
Choose the correct answer from the options given below.- NEET (UG) - 2024
- Wave optics
- The capacitance of a capacitor with charge q and a potential difference V depends on :
- NEET (UG) - 2024
- Capacitors and Capacitance
- A step up transformer is connected to an ac mains supply of 220 V to operate at 11000 V, 88 watt. The current in the secondary circuit, ignoring the power loss in the transformer, is
- NEET (UG) - 2024
- Electromagnetic induction
- In an ecosystem if the Net Primary Productivity (NPP) of first trophic level is 100x (kcal m-2)yr-1, what would be the GPP (Gross Primary Productivity) of the third trophic level of the same ecosystem?
- NEET (UG) - 2024
- Ecosystems
- The following are the statements about non- chordates:
A. Pharynx is perforated by gill slits.
B. Notochord is absent.
C. Central nervous system is dorsal.
D. Heart is dorsal if present.
E. Post anal tail is absent.
Choose the most appropriate answer from the options given below:- NEET (UG) - 2024
- human nervous system
View More Questions
Concepts Used:
Magnetism & Matter
Magnets are used in many devices like electric bells, telephones, radio, loudspeakers, motors, fans, screwdrivers, lifting heavy iron loads, super-fast trains, especially in foreign countries, refrigerators, etc.
Magnetite is the world’s first magnet. This is also called a natural magnet. Though magnets occur naturally, we can also impart magnetic properties to a substance. It would be an artificial magnet in that case.
Read More: Magnetism and Matter
Some of the properties of the magnetic field lines are:
- The lines and continuous and outside the magnet, the field lines originate from the North pole and terminate at the South pole
- They form closed loops traversing inside the magnet.
- But here the lines seem to originate from the South pole and terminate at the North pole to form closed loops.
- More number of close lines indicate a stronger magnetic field
- The lines do not intersect each other
- The tangent drawn at the field line gives the direction of the field at that point.